*{
	margin: 0;
	padding: 0;
}
html,
body {
    width: 100%;
    height: 100%;
    overflow: scroll;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
    width: 0px;
    height: 0px;
}

/* 底部空白 */
.bottomblank{
	width: 100%;
	height: 20rem;
}
/* 底部 */
.bottom {
	width: 100%;
	height: 10vh;
	position: fixed;
	bottom: 0px;
	padding-top: 1rem;
	background-color: #F4F4F4;
	display: flex;
}
.bottom_li{
	width: 40%;
	height: 100%;
	display: flex;
	flex-direction: column;
	align-items: center;
}
.bottom_liimg{
	width: 7rem;
	height: 7rem;
}
.bottom_liimg img {
	width: 100%;
	height: 100%;
}
.bottom_lip{
	font-size: 2.5em;
	color: #272536;
}
/* 返回顶部 */
#back {
	width: 7vh;
	height: 7vh;
	position: fixed;
	bottom: 200px;
	right: 3%;
}

#back #gotop img {
	width: 100%;
	height: 100%;
}
